input-validation

Name: input-validation
Author: Archive228

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How to install input-validation?

archive228/loopkit/input-validation

$npx -y skills add Archive228/loopkit --skill input-validation

Installs into the current project.

Summary

Validate and constrain untrusted input at the boundary. Use on any handler that accepts external data.

Files · 1

SKILL.md

1	# Input Validation
2	Validate at the edge, before the data touches logic or storage.
3	- Schema — type, required fields, allowed values. Reject unknown fields rather than ignoring them.
4	- Bounds — string length, number ranges, array size. An unbounded input is a DoS and a memory bomb.
5	- Format — emails, UUIDs, dates parsed and re-validated, not trusted as strings.
6	- Files — size limit, type allowlist (check content, not just extension), no path traversal in names.
7	- Reject with a clear 4xx and a message that says what's wrong — without leaking internals.
8	Never trust "it comes from our own frontend". The request can come from anywhere.

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